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Finding the Fourth Proportional to 723,606.12, 998,609.78 and 401,297.01

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Solution

The fourth proportional to 723,606.12, 998,609.78 and 401,297.01 is: 553,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,606.12 : 998,609.78 = 401,297.01 : x
  2. Step 2: Convert to fraction form
    723,606.12/998,609.78 = 401,297.01/x
  3. Step 3: Cross multiply
    723,606.12x = 998,609.78 × 401,297.01
  4. Step 4: Simplify right side
    723,606.12x = 400,739,118,870.76
  5. Step 5: Solve for x
    x = 400,739,118,870.76/723,606.12
  6. Step 6: Final answer
    x = 553,808.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.